Spinach
Spinach, a gherkin based test framework like cucumber but without the Regex madness.
Scope a variable and clean up your code with .tap
Great case for using .tap to clean up and organize code.
Example
<div class="active_messages">
<% @active_messages.each do |message| %>
<h1><%= message.title %></h1>
<div class="latest_comment">
<% message.comments.last.tap do |comment| %>
<div class="avatar">
<%= avatar_for(comment.creator) %>
</div>
Latest comment <%= time_ago_in_words(comment.created_at) %> ago by <%= comment.creator.full_name %>
<% end %>
</div>
<% end %>
</div>